Lyme disease can affect cats, but it is rare in felines compared with dogs. Most cats exposed to Borrelia burgdorferi tick bites do not develop noticeable illness, but some may show signs if infection occurs. Key points

• Transmission: Lyme disease is carried by ticks, most commonly the deer tick in many regions. Ticks must be attached for a period of time (often 24–48 hours) to transmit the bacteria. Cats can be bitten by the same ticks that bite dogs and people.

• How common: In general, Lyme disease is considered uncommon in cats. Several veterinary sources note that cats are less susceptible and less frequently symptomatic than dogs, though infection can happen.

• Symptoms in cats (when they occur): Lameness or shifting leg lameness, fever, loss of appetite, lethargy, and less commonly signs affecting other systems (kidneys, joints, nervous system, heart). Many infected cats do not show obvious signs.

• Diagnosis and treatment: Diagnosis relies on history (tick exposure), clinical signs, blood tests, and sometimes antibody or PCR testing. Treatment typically involves appropriate antibiotics and supportive care; prognosis is generally favorable for cats that are diagnosed and treated, though outcomes can vary.

• Prevention: Tick prevention is important for all pets in tick-endemic areas, including felines. Regular tick checks, grooming, and using veterinarian-recommended preventives can reduce risk.

Practical guidance if you’re concerned

• If a cat has recent tick exposure or shows signs like limping, fever, or decreased appetite, contact a veterinarian for evaluation. Even if Lyme disease is unlikely, other tick-borne or infectious conditions could be at play, and a vet can perform appropriate tests and treatment if needed.

• Regular tick prevention for your cat (and your household pets) is wise, especially in areas where Lyme disease is present. This includes using vet-approved products and performing regular tick checks after outdoor activity.

Would you like a quick checklist for assessing your cat’s tick exposure and a short list of questions to ask your vet if Lyme disease testing is being considered?